Jamb Mathematics 1979 Past Questions and Answers

Question 31:

• JAMB 1979

Simplify 2\(\frac{5}{12}\) - 1\(\frac{7}{8}\) x \(\frac{6}{5}\)

A. \(\frac{1}{6}\)
B. \(\frac{13}{20}\)
C. \(\frac{11}{30}\)
D. \(\frac{9}{4}\)
E. \(\frac{5}{3}\)

Question 32:

• JAMB 1979

One of the following statements is wrong. Which is it?

A. If a triangle is equiangular then it is also equilateral
B. If a triangle is equilateral then it is also then it is also equiangular
C. If two triangles are similar then they are also congurent
D. The sum of the interior angles of any triangle is 180 degrees

Question 33:

• JAMB 1979

PQRS is a cyclic quadrilateral with PQ as diameter of the circle. If < PQS = 15^o find < QRS

A. 75^o
B. 37\(\frac{1}{2}\)^o
C. 127\(\frac{1}{2}\)^o
D. 105^o

Question 34:

• JAMB 1979

Make x the subject of the equation a(b + c) + \(\frac{5}{d}\) - 2 = 0

A. C = \(\frac{2d - 5 - b}{ad}\)
B. C = \(\frac{2d - 5 - abd}{ad}\)
C. C = \(\frac{2d - 5 - ab}{ad}\)
D. C = \(\frac{5 - 2d - b}{ad}\)

Question 35:

• JAMB 1979

Which of the following values of the variable x, (a)x = 0, (b)x = -3, (c)x = 9, satisfy the inequalities 0 < \(\frac{x + 3}{x - 1}\) < 2?

A. (a), (b), (c)
B. (c)
C. None of the choices
D. All of the above